COMMON STOCK ACTIVITY (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares outstanding at beginning of year (in shares)	39,676,828
Common stock offerings (in shares)	1,551,181	709,924	2,388,342
Dividend reinvestment plan (in shares)			1,893
Shares outstanding at end of year (in shares)	41,268,846	39,676,828
Common shares, issued	1,551,181	709,924	2,388,342
Net proceeds from Issuance of Common Stock	$ 271,155	$ 92,663	$ 284,710
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares outstanding at beginning of year (in shares)	39,676,828	38,925,953	36,501,356
Common stock offerings (in shares)	1,551,181	709,924	2,388,342
Dividend reinvestment plan (in shares)	0	0	1,893
Incentive restricted stock granted (in shares)	66,623	69,446	59,943
Incentive restricted stock forfeited (in shares)	0	(440)	(3,010)
Director common stock awarded (in shares)	4,466	8,182	6,384
Director restricted stock granted (in shares)	0	208	0
Restricted stock withheld for tax obligations (in shares)	(30,252)	(36,445)	(28,955)
Shares outstanding at end of year (in shares)	41,268,846	39,676,828	38,925,953